Not found before the 1920s, and not common until the 1940s, but increasingly popular since, being borne, for example, by the American actress Cheryl Ladd (b. 1951). It appears to be a blend of Cherry and Beryl.
German and Dutch: status name from Middle High German marcgrāve ‘margrave’ (from marc ‘boundary’ + grāve ‘royal judge’). In some cases the title may have been applied as a nickname for someone with overbearing behavior or as an metonymic occupational name for a servant in the household of a margrave.